201120521716 has 24 divisors (see below), whose sum is σ = 364152768840. Its totient is φ = 97077926400.

The previous prime is 201120521711. The next prime is 201120521741. The reversal of 201120521716 is 617125021102.

It can be written as a sum of positive squares in 4 ways, for example, as 19093712400 + 182026809316 = 138180^2 + 426646^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201120521711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 656056 + ... + 912496.

It is an arithmetic number, because the mean of its divisors is an integer number (15173032035).

Almost surely, 2^201120521716 is an apocalyptic number.

It is an amenable number.

201120521716 is a deficient number, since it is larger than the sum of its proper divisors (163032247124).

201120521716 is a wasteful number, since it uses less digits than its factorization.

201120521716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263235 (or 263233 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 28.

Adding to 201120521716 its reverse (617125021102), we get a palindrome (818245542818).

The spelling of 201120521716 in words is "two hundred one billion, one hundred twenty million, five hundred twenty-one thousand, seven hundred sixteen".